CN219230214U

CN219230214U - Pressure detection structure and electric toothbrush

Info

Publication number: CN219230214U
Application number: CN202223192940.4U
Authority: CN
Inventors: 王大福; 黄智永
Original assignee: Guangdong Genius Technology Co Ltd
Current assignee: Guangdong Genius Technology Co Ltd
Priority date: 2022-11-30
Filing date: 2022-11-30
Publication date: 2023-06-23
Anticipated expiration: 2032-11-30

Abstract

The utility model discloses a pressure detection structure and an electric toothbrush, wherein the pressure detection structure comprises: the pressure sensor is arranged on the support frame, so that when the measured object is pressed and deformed, the support frame can amplify the deformation, and the pressure sensor detects the pressure born by the measured object according to the amplified deformation. The deformation generated under the action of external force can be amplified by adding the special structure formed by the support frame, the notch and the side frame which are made of specific materials, so that the deformation quantity sensed by the pressure detection sensor arranged on the support frame is increased, the pressure sensor can more easily and accurately detect the stress degree of a measured object, and the sensitivity of pressure detection setting is improved.

Description

Pressure detection structure and electric toothbrush

Technical Field

The utility model relates to the field of pressure detection, in particular to a pressure detection structure and an electric toothbrush.

Background

The pressure detection technology is the most commonly used technology in industrial practice, is widely applied to various industrial self-control environments, and relates to various industries such as water conservancy and hydropower, railway traffic, intelligent building, production self-control, aerospace, military industry, petrochemical industry, oil well, electric power, ships, machine tools, pipelines and the like, and one of the principles of the pressure detection technology is to utilize a pressure sensor to contact with an object to be detected to sense the change of the object to be detected so as to detect the pressure of the object to be detected.

In the existing pressure detection structure, as the detected object has certain rigidity, the deformation amount generated when the detected object is subjected to external force is limited, so that the signal received by the pressure sensor is too low, even the signal can not be received, and the defect of low sensitivity of pressure detection exists.

Disclosure of Invention

The utility model aims to provide a pressure detection structure and an electric toothbrush with the same, wherein the pressure detection structure solves the problem of insufficient pressure sensing setting sensitivity.

In order to achieve the above object, the present utility model provides a pressure detecting structure comprising:

a pressure sensor;

the pressure sensor is arranged on the support frame, so that when the measured object is pressed and deformed, the support frame can amplify the deformation, and the pressure sensor detects the pressure born by the measured object according to the amplified deformation.

And the pressure of the detected object is sensed more accurately and sensitively, so that the sensitivity of the pressure detection structure is improved.

In some embodiments, the suspended bracket further comprises two side frames connected with the object to be tested, and the supporting frame is fixed between the end parts of the two side frames.

In some embodiments, a notch is disposed between the two side frames on a side of the object facing the support frame.

The provision of the gap effectively reduces the stiffness of the region being measured on the object to be measured, thereby allowing deformation of the object to occur more easily and significantly when subjected to a force.

In some embodiments, the notch is located midway between the two side frames.

The rigidity of the measured object is effectively weakened to a large extent, and the measured object is ensured to generate more deformation after being stressed.

In some embodiments, the support frame is an elastic material and the side frame is a rigid material.

The support piece is made of elastic materials, so that the support frame can generate more deformation, and the side frame formed by the rigid materials can better conduct the deformation generated by the measured object to the support frame.

In some embodiments, the pressure sensor is a piezoresistive pressure sensor.

In some embodiments, there is also provided in accordance with another aspect of the present utility model an electric toothbrush comprising a head, a handle comprising a drive motor connected to the head by a motor rotation shaft, the motor rotation shaft having disposed thereon a pressure sensing arrangement as described in any one of the preceding claims.

The electric toothbrush can sense the deformation of the motor rotating shaft more sharply, so that the pressure detection function of the electric toothbrush is more sensitive and a user obtains better experience.

In some embodiments, one side of the brush head further comprises: the brush hair, unsettled support is installed on the motor axis of rotation with brush hair on the brush head opposite side, make the brush head receives external force effect drive when the motor axis of rotation produces deformation, pressure sensor can be according to the enlargement deformation detects the pressure that the brush head receives.

In some embodiments, one end of the brush head far away from the brush hair is provided with a cavity, the cavity corresponds to the motor rotating shaft, the motor rotating shaft is inserted into the cavity and is fixedly connected with the brush head,

the connection mode of the fixed brush head and the brush handle enables the brush head to be replaceable, reduces resource waste and improves the recycling rate of the brush handle.

In some embodiments, the brush holder is provided with the chamber of holding towards one side of brush head, driving motor with pressure detection structure mount pad hold the intracavity, the brush holder with be equipped with the clearance between the brush head, the clearance is favorable to the brush head during operation vibrates to a greater extent.

Compared with the prior art, the pressure detection structure and the electric toothbrush provided by the utility model have the following beneficial effects:

according to the pressure detection structure provided by the utility model, the deformation generated under the action of the external force is amplified by adding the special structure formed by the support frame, the notch and the side frame made of the specific materials, so that the deformation amount sensed by the pressure detection sensor arranged on the support frame is increased, the pressure sensor can more easily and accurately detect the stress degree of an object to be detected, and meanwhile, the sensitivity of pressure detection setting is improved.

Drawings

The above features, technical features, advantages and implementation of the present utility model will be further described in the following description of preferred embodiments with reference to the accompanying drawings in a clear and easily understood manner.

FIG. 1 is a block diagram of a pressure sensing structure with rectangular notches according to one embodiment of the present utility model;

FIG. 2 is a block diagram of another pressure sensing configuration with rectangular indentations in accordance with an embodiment of the present utility model;

FIG. 3 is a block diagram of other pressure sensing structures with rectangular notches according to one embodiment of the present utility model;

FIG. 4 is a block diagram of a pressure sensing structure with trapezoidal notches according to one embodiment of the present utility model;

FIG. 5 is a front view of an electric toothbrush according to one embodiment of the present utility model;

fig. 6 is a structural view of a pressure sensing structure of an electric toothbrush according to an embodiment of the present utility model.

Reference numerals illustrate:

the device comprises a tested object 01, a notch 02, a side frame 03, a supporting frame 04, a pressure sensor 05, a brush head 06, a driving motor 07, a motor rotating shaft 08, a pressure detection structure 09, brush hairs 10, a gap 11 and a brush handle 12.

Detailed Description

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following description will explain the specific embodiments of the present utility model with reference to the accompanying drawings. It is evident that the drawings in the following description are only examples of the utility model, from which other drawings and other embodiments can be obtained by a person skilled in the art without inventive effort.

For simplicity of the drawing, only the parts relevant to the utility model are schematically shown in each drawing, and they do not represent the actual structure thereof as a product. Additionally, in order to simplify the drawing for ease of understanding, components having the same structure or function in some of the drawings are shown schematically with only one of them, or only one of them is labeled. Herein, "a" means not only "only this one" but also "more than one" case.

It should be further understood that the term "and/or" as used in this specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.

In this context, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, unless explicitly stated or limited otherwise; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In addition, in the description of the present application, the terms "first," "second," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance.

Referring to fig. 1 to 4 of the drawings, a pressure detecting structure 09 provided by the present utility model is illustrated, which is a special structure formed by combining a supporting frame 04, two side frames 03 and a measured object 01 together, and has a function of amplifying deformation generated under the action of external force, so that a pressure sensor 05 mounted on the supporting frame 04 receives the amplified deformation amount, thereby improving the sensitivity of pressure detecting arrangement.

In one embodiment, referring to fig. 1, 2 and 3 of the specification, the pressure detecting structure 09 includes a pressure sensor 05, a suspended bracket, where the suspended bracket is connected and fixed with a measured object 01, and has a supporting frame 04 suspended relative to the measured object 01, where the pressure sensor 05 is mounted on the supporting frame 04, so that when the measured object 01 is deformed under pressure, the supporting frame 04 can amplify the deformation, and the pressure sensor 05 detects the pressure applied to the measured object 01 according to the amplified deformation, where a specific connection fixing manner may be screw fixing, adhesive fixing, or fastening fixing, and in this embodiment, other connection fixing manners playing the same effect may be other than the mentioned connection fixing manner, which is not limited herein.

It should be noted that the suspension bracket further includes two side frames 03 connected to the object 01 to be tested, and the support frame 04 is fixed between the ends of the two side frames 03, where a specific fixing manner may be welding or adhesive, and in this embodiment, other fixing manners with the same effect may be used instead of the mentioned fixing manner, which is not limited herein.

Further, in this embodiment, referring to fig. 1, 2 and 3 of the specification, the shape formed by the support frame 04, the object 01 and the two side frames 03 being enclosed in combination is rectangular, may be a regular trapezoid, may be an inverted trapezoid, and may be other shapes that have the same effect in this embodiment, besides the mentioned shape, but is not limited thereto.

In one embodiment, referring to fig. 1 and fig. 4 of the specification, on the basis of the above embodiment, a notch 02 located between two side frames 03 is provided on a side of the object 01 facing the support frame 04, where the shape of the notch 02 may be rectangular, semicircular, trapezoid, or other notch shapes that have the same effect in addition to the mentioned notch shape in the present embodiment, and is not limited herein.

It should be noted that, referring to fig. 1 of the specification, the notch 02 is located at a middle position between the two side frames 03, that is, the notch 02 is located at a middle position of the support frame 04, so that the rigidity of the object 01 to be measured can be weakened to the greatest extent, and the object 01 can be deformed to the greatest extent when receiving pressure, and then be transmitted to the support frame 04 through the two side frames 03, so that the support frame 04 is deformed, and then be transmitted to the pressure sensor 05 mounted on the support frame 04.

In one embodiment, referring to fig. 1 of the specification, based on the above embodiment, the supporting frame 04 is made of an elastic material, and the side frame 03 is made of a rigid material, so that the pressure and deformation received on the measured object 01 can be maximally transmitted to the supporting frame 04, and meanwhile, the elastic material characteristic of the supporting frame 04 can maximally convert the received pressure into deformation.

It should be noted that, based on the above embodiment, the elastic material may be elastic steel, or elastic plastic, and the rigid material may be rigid stainless steel, or plastic steel, or other elastic materials and rigid materials that have the same effect in this embodiment, which are not limited herein.

In one embodiment, the pressure sensor 05 is a piezoresistive pressure sensor, and the piezoresistive pressure sensor is installed in the middle position of the support frame 04, and senses and receives deformation stress signals on the support frame 04 to the greatest extent, so that pressure detection sensitivity of the pressure detection structure 09 is improved.

According to another aspect of the present utility model, referring to fig. 5 and 6 of the accompanying drawings, the present utility model further provides an electric toothbrush, including a brush head 06, a handle 12, the handle 12 including a driving motor 07, the driving motor 07 being connected to the brush head 06 through a motor rotation shaft 08, the motor rotation shaft 08 being provided with the pressure detecting structure 09, so that a minute pressure value applied to the motor rotation shaft 08 can be sensed inside, the accuracy of the pressure sensing is improved, and the electric toothbrush can be more sensitive to and more rapidly feedback the pressure sensing on the motor rotation shaft 08, thereby better performing the pressure detecting function of the electric toothbrush.

It should be noted that, the brush holder 12 is further provided with a control circuit and a prompting component, the prompting component and the pressure sensor 05 are respectively electrically connected with the control circuit, the prompting component is used for prompting a user according to the signal of the pressure sensor 05, and the prompting component can be a light-emitting component, a sound-producing component or a vibration component, and besides the above components, other components which can have the same effect can be not mentioned.

In one embodiment, referring to fig. 5 of the specification, one side of the brush head 06 includes bristles 10, and a suspension bracket is mounted on the other side of the motor rotation shaft 08 opposite to the bristles 10 on the brush head 06, so that when the brush head 06 is driven by an external force to deform the motor rotation shaft 08, the pressure sensor 05 can detect the pressure applied to the brush head 06 according to the amplified deformation.

In one embodiment, on the basis of the above embodiment, referring to fig. 6 of the specification, a cavity is provided at one end of the brush head 06 far away from the brush hair 10, the cavity corresponds to the motor rotation shaft 08, the motor rotation shaft 08 is inserted into the cavity and is fixedly connected with the brush head 06, the brush head 06 works under the driving of the motor rotation shaft 08, the brush head 06 is conveniently supported to be replaced by the design of the detachable structure, the service life of the brush handle 12 is prolonged, and therefore the waste of resources is reduced, and the sustainable development energy-saving and environment-friendly effects are achieved.

In the preferred embodiment, referring to fig. 5 and 6 of the specification, a containing cavity is arranged on one side of the brush handle 12 facing the brush head 06, a driving motor 07 and a pressure detecting structure 09 are arranged in the containing cavity, a gap 11 is arranged between the brush handle 12 and the brush head 06, so that the electric toothbrush can swing freely in a certain amplitude when vibrating, the swing amplitude of the brush head 06 is increased, the cleaning range of the brush head 06 is enlarged, and the cleaning effect on teeth is enhanced.

It should be noted that the above embodiments can be freely combined as needed. The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which are intended to be comprehended within the scope of the present utility model.

Claims

1. A pressure detecting structure for detecting a pressure applied to an object to be detected, comprising:

a pressure sensor;

2. The pressure detecting structure according to claim 1, wherein,

the suspension bracket further comprises two side frames connected with the object to be tested, and the support frame is fixed between the end parts of the two side frames.

3. The pressure detecting structure according to claim 2, wherein,

and a notch positioned between the two side frames is arranged on one side of the object to be measured, which faces the supporting frame.

4. A pressure sensing structure according to claim 3, wherein,

the notch is positioned at the middle position between the two side frames.

5. A pressure detecting structure according to claim 2 or 3, wherein,

the support frame is elastic material, and the side frame is rigid material.

6. The pressure detecting structure according to claim 1, wherein,

the pressure sensor is a piezoresistive pressure sensor.

7. An electric toothbrush, comprising:

a brush head;

the brush holder, the brush holder includes driving motor, driving motor passes through the motor rotation axis and connects the brush head, be provided with the pressure detection structure of any one of claims 1-6 on the motor rotation axis.

8. The electric toothbrush according to claim 7, wherein,

one side of the brush head comprises bristles, the suspension bracket is arranged on the other side of the motor rotating shaft opposite to the bristles on the brush head, and when the brush head is driven by external force to deform by the motor rotating shaft, the pressure sensor can detect the pressure born by the brush head according to the amplified deformation.

9. The electric toothbrush according to claim 7, wherein,

a cavity is formed at one end of the brush head, which is far away from the brush hair, and corresponds to the motor rotating shaft;

the motor rotating shaft is inserted into the cavity and fixedly connected with the brush head.

10. The electric toothbrush according to claim 9, wherein,

one side of the brush handle, which faces the brush head, is provided with a containing cavity, the driving motor and the pressure detection structure mounting seat are arranged in the containing cavity, and a gap is arranged between the brush handle and the brush head.